/* ============================================================
   servora.app — tanıtım sitesi stilleri
   Ferah · açık tema (koyu bölüm yoktur) · yeşil vurgu (ürün marka rengi: abibasoft.com ürün paletindeki `--green`; uygulamanın tasarım diliyle aynı).
   Yazı tipi: sistem yığını (üçüncü taraf yazı tipi ∧ simge yazı tipi yüklenmez).
   ============================================================ */

:root {
    --brand: #0e9f78;
    --brand-600: #0b8264;
    --brand-400: #34c79a;
    --brand-100: #d3f3e8;
    --brand-50: #ecf9f4;

    --ink: #0b1220;
    --ink-2: #334155;
    --muted: #64748b;
    --line: #e3e8f0;
    --bg: #ffffff;
    --bg-soft: #f4faf8;

    --radius: 22px;
    --radius-lg: 32px;
    --container: 1160px;

    --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;

    --shadow-card: 0 1px 2px rgba(8, 52, 41, 0.04), 0 12px 32px -12px rgba(8, 52, 41, 0.12);
    --shadow-phone: 0 34px 50px -22px rgb(8 52 41 / 0.38), 0 14px 22px -14px rgb(8 52 41 / 0.28);

    /* Cihaz çerçevesinin ekran zemini: uygulamanın sayfa zemini (`app/src/index.css` @theme `--color-background`); ekran görüntüsünün üstündeki durum şeridi payı bu renkle dolar. */
    --screen-bg: #f4f4f5;

    /* Kilit dilinin soluk değeri (proje.md §13.7): kanonik kaynağı uygulamadır — `app/src/index.css` @theme `--veil-fade`; kilitli paket kartı bunu kullanır, eşitliği
       kapıda zorlanır (`scripts/i18n-check.mjs` K16). Sitede derleme adımı yoktur: tek kaynaktan üretim kurulmaz, kopya kapıyla bağlıdır. */
    --veil-fade: 0.5;
}

/* ---------- temel ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    color-scheme: light;
}

body {
    margin: 0;
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--bg);
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img,
svg {
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
    margin: 0;
}

button {
    font: inherit;
    color: inherit;
}

:focus-visible {
    outline: 3px solid var(--brand-400);
    outline-offset: 3px;
    border-radius: 8px;
}

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 860px;
}

.ic {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex: none;
}

.ic-sm {
    width: 16px;
    height: 16px;
}

/* ---------- marka ---------- */
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-mark {
    width: 32px;
    height: 32px;
    flex: none;
}

.logo-mark rect {
    fill: var(--brand);
}

.logo-mark path {
    fill: none;
    stroke: #fff;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.logo-text {
    font-size: 1.28rem;
    color: var(--ink);
}

.logo-text span {
    color: var(--brand);
}

/* ---------- gezinme ---------- */
.navbar {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 50;
    transition: background 0.25s ease, box-shadow 0.25s ease, backdrop-filter 0.25s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.82);
    -webkit-backdrop-filter: saturate(1.6) blur(16px);
    backdrop-filter: saturate(1.6) blur(16px);
    box-shadow: 0 1px 0 var(--line);
}

.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    height: 68px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    margin-inline-start: auto;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    display: block;
    padding: 9px 14px;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--ink-2);
    transition: color 0.2s ease, background 0.2s ease;
}

.nav-link:hover {
    color: var(--brand);
    background: var(--brand-50);
}

.nav-cta {
    color: var(--brand);
    background: var(--brand-50);
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--brand-100);
}

.nav-tools {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang {
    position: relative;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--ink-2);
    transition: border-color 0.2s ease, color 0.2s ease;
}

.lang-btn:hover,
.lang-btn.active {
    border-color: var(--brand-400);
    color: var(--brand);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    inset-inline-end: 0;
    min-width: 168px;
    margin: 0;
    padding: 6px;
    list-style: none;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: 0 18px 40px -12px rgba(7, 31, 25, 0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}

.lang-menu.active {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 12px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    font-size: 0.92rem;
    text-align: start;
    cursor: pointer;
}

.lang-option:hover {
    background: var(--bg-soft);
}

.lang-option.active {
    background: var(--brand-50);
    color: var(--brand);
    font-weight: 600;
}

.lang-option .flag {
    font-size: 1.1rem;
}

.hamburger {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--ink);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* ---------- düğme · rozet ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.005em;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 12px 26px -10px rgba(14, 159, 120, 0.7);
}

.btn-primary:hover {
    background: var(--brand-600);
    transform: translateY(-2px);
}

.btn-ghost {
    border-color: var(--line);
    background: rgba(255, 255, 255, 0.7);
    color: var(--ink);
}

.btn-ghost:hover {
    border-color: var(--brand-400);
    color: var(--brand);
    transform: translateY(-2px);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
}

.chip-soft {
    background: rgba(14, 159, 120, 0.08);
    color: var(--brand);
}

.chip-soon {
    padding: 4px 11px;
    background: var(--brand-50);
    color: var(--brand);
    font-size: 0.74rem;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 4px rgba(14, 159, 120, 0.18);
    animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
    50% {
        box-shadow: 0 0 0 7px rgba(14, 159, 120, 0.06);
    }
}

/* ---------- cihaz çerçevesi ---------- */
/* Ekranlar telefon çerçevesi içinde gösterilir (kullanıcı kararı). Çerçeve tamamen CSS'tir (görsel dosyası yok) ∧ ölçüsü tek değişkenden türer: `--pw` çerçevenin dış genişliğidir;
   kenar kalınlığı · köşe yarıçapı · ada ∧ yan düğmeler ona oranlıdır, çerçeve boyutu yalnız `--pw` verilerek değişir.
   Ekran görüntüsü (uygulama galerisinden, 1:2) ekrana tam genişlikte oturur; üstteki durum şeridi payı çerçeveye aittir (`padding-block-start`, genişliğe oranlı).
   Alt sayfa görüntüsü (`.screen-sheet`, şeffaf köşeli) ürünün gerçek davranışı gibi arka plan ekranının üstüne, perdesiyle (`.screen-scrim`) birlikte oturur.
   Köşe yarıçapları simetriktir (K8). */
.phone {
    --pw: 280px;
    position: relative;
    flex: none;
    width: var(--pw);
    margin-inline: auto;
}

.phone-body {
    position: relative;
    padding: calc(var(--pw) * 0.034);
    border-radius: calc(var(--pw) * 0.17);
    background: linear-gradient(155deg, #2d3745 0%, #141b25 52%, #1d2631 100%);
    box-shadow:
        inset 0 0 0 1px rgb(255 255 255 / 0.16),
        0 0 0 1px rgb(11 18 32 / 0.45),
        var(--shadow-phone);
}

/* yan düğmeler: güç (satır sonu tarafı) ∧ ses (satır başı tarafı) */
.phone-body::before,
.phone-body::after {
    content: "";
    position: absolute;
    width: 3px;
    border-radius: 2px;
    background: #1d2631;
}

.phone-body::before {
    inset-inline-end: -3px;
    inset-block-start: 22%;
    height: 11%;
}

.phone-body::after {
    inset-inline-start: -3px;
    inset-block-start: 18%;
    height: 17%;
}

.phone-screen {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding-block-start: 12%;
    border-radius: calc(var(--pw) * 0.138);
    background: var(--screen-bg);
}

/* kamera adası */
.phone-screen::before {
    content: "";
    position: absolute;
    z-index: 4;
    inset-block-start: calc(var(--pw) * 0.03);
    inset-inline: 0;
    width: calc(var(--pw) * 0.26);
    height: calc(var(--pw) * 0.072);
    margin-inline: auto;
    border-radius: 999px;
    background: #0b0f14;
}

.phone-screen img {
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
}

.screen-scrim {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgb(15 23 42 / 0.42);
}

.phone-screen > .screen-sheet {
    position: absolute;
    z-index: 2;
    inset-inline: 0;
    inset-block-end: 0;
}

/* ---------- kahraman ---------- */
.hero {
    position: relative;
    overflow-x: clip;
    padding: 132px 0 72px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(60% 55% at 85% 10%, rgba(52, 199, 154, 0.2), transparent 70%),
        radial-gradient(45% 45% at 8% 35%, rgba(14, 159, 120, 0.12), transparent 70%),
        radial-gradient(40% 40% at 55% 100%, rgba(20, 184, 166, 0.1), transparent 70%),
        linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
}

.hero-copy {
    position: relative;
    z-index: 3;
    max-width: 520px;
}

.hero-title {
    margin-top: 22px;
    font-size: clamp(2.5rem, 5.2vw, 4.1rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.035em;
    background: linear-gradient(120deg, var(--ink) 30%, var(--brand) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-lead {
    margin-top: 22px;
    max-width: 520px;
    font-size: 1.2rem;
    color: var(--ink-2);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

/* öndeki telefon Güncel Durum, arkadaki ekipman sayfası; boyutlar `--front-pw` ∧ `--back-pw` değişkenlerinden türer, sahne yüksekliği öndeki telefona bağlıdır */
.hero-stage {
    --front-pw: 300px;
    --back-pw: 252px;
    position: relative;
    height: calc(var(--front-pw) * 2.06);
}

.hero-stage .phone {
    position: absolute;
}

.hero-stage .phone-front {
    --pw: var(--front-pw);
    z-index: 2;
    inset-inline-end: 5%;
    inset-block-start: 0;
}

.hero-stage .phone-back {
    --pw: var(--back-pw);
    z-index: 1;
    inset-inline-end: calc(5% + 240px);
    inset-block-start: calc(var(--front-pw) * 0.32);
}

/* ---------- değerler ---------- */
.values {
    padding: 24px 0 8px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.value {
    padding: 30px 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow-card);
}

.value-ic {
    display: inline-grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 18px;
    border-radius: 14px;
    background: var(--brand-50);
    color: var(--brand);
}

.value h3 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.015em;
}

.value p {
    margin-top: 8px;
    color: var(--ink-2);
    font-size: 0.98rem;
}

/* ---------- bölümler ---------- */
.section {
    padding: 112px 0;
}

.section-tint {
    background: var(--bg-soft);
}

.section-head {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--brand);
}

.section-head h2 {
    margin-top: 14px;
    font-size: clamp(2rem, 4.2vw, 3.1rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.section-lead {
    margin-top: 16px;
    font-size: 1.15rem;
    color: var(--muted);
}

/* ---------- üç adım: gör · başlat · hesaplanır ---------- */
.steps {
    list-style: none;
    padding: 0;
    margin: 72px 0 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 40px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    text-align: center;
}

.step .phone {
    --pw: clamp(168px, 27vw, 264px);
}

.step-copy {
    max-width: 320px;
}

.step-num {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 14px;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: 0 10px 22px -8px rgba(14, 159, 120, 0.7);
}

.step-copy h3 {
    font-size: clamp(1.35rem, 2.2vw, 1.65rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.step-copy p {
    margin-top: 12px;
    font-size: 1.02rem;
    color: var(--ink-2);
}

/* ---------- ekranlar: hepsi görünür, açılır öğe yoktur ---------- */
.screens-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 32px;
    margin-top: 64px;
}

.screen-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 26px;
    text-align: center;
}

.screen-card .phone {
    --pw: 232px;
}

.screen-card h3 {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px 10px;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.015em;
}

.screen-card p {
    margin-top: 8px;
    max-width: 260px;
    margin-inline: auto;
    font-size: 0.98rem;
    color: var(--ink-2);
}

/* ---------- paketler ---------- */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-top: 64px;
}

.plan {
    padding: 34px 30px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow-card);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.plan:hover {
    transform: translateY(-4px);
    border-color: var(--brand-100);
    box-shadow: 0 1px 2px rgba(8, 52, 41, 0.04), 0 22px 44px -16px rgba(14, 159, 120, 0.22);
}

.plan-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.plan-name {
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.plan-desc {
    margin-top: 6px;
    color: var(--muted);
}

.plan-list {
    list-style: none;
    padding: 0;
    margin: 26px 0 0;
    display: grid;
    gap: 14px;
}

.plan-list li {
    position: relative;
    padding-inline-start: 32px;
    color: var(--ink-2);
    font-size: 0.98rem;
}

.plan-list li::before {
    content: "";
    position: absolute;
    inset-inline-start: 0;
    top: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--brand-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230e9f78' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5.5 12.5 4.2 4.2L18.5 7.8'/%3E%3C/svg%3E") center / 12px no-repeat;
}

/* kilitli paket kartı (Yakında): onay ikonları kilit dilindeki gibi soluk, metin okunur kalır (`--veil-fade`) */
.plan-locked .plan-list li::before {
    opacity: var(--veil-fade);
}

/* ---------- SSS ---------- */
.faq {
    display: grid;
    gap: 12px;
    margin-top: 56px;
}

.faq-item {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item[open] {
    border-color: var(--brand-100);
    box-shadow: var(--shadow-card);
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 26px;
    font-size: 1.08rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    cursor: pointer;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "";
    flex: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--brand-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230e9f78' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center / 14px no-repeat;
    transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-a {
    padding: 0 26px 24px;
    color: var(--ink-2);
    line-height: 1.75;
}

/* ---------- edinme kartı ---------- */
.product {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 64px 32px 60px;
    text-align: center;
    border: 1px solid var(--brand-100);
    border-radius: var(--radius-lg);
    background: linear-gradient(165deg, #ffffff 0%, var(--brand-50) 100%);
    box-shadow: 0 1px 2px rgba(8, 52, 41, 0.04), 0 30px 60px -24px rgba(14, 159, 120, 0.28);
}

.product-ic {
    display: block;
    margin-bottom: 22px;
    filter: drop-shadow(0 14px 18px rgba(14, 159, 120, 0.35));
}

.product-ic .logo-mark {
    width: 76px;
    height: 76px;
}

.p-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--brand-100);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--brand);
}

.p-chip i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--brand);
}

.product-name {
    margin-top: 18px;
    font-size: clamp(2.2rem, 4.4vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.035em;
}

.product-desc {
    max-width: 520px;
    margin: 14px auto 0;
    font-size: 1.12rem;
    color: var(--ink-2);
}

.spec-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 34px;
}

.btn-soon {
    background: #fff;
    border-color: var(--line);
    color: var(--ink-2);
    cursor: default;
}

.btn-soon em {
    padding: 2px 9px;
    border-radius: 999px;
    background: var(--brand-50);
    color: var(--brand);
    font-size: 0.72rem;
    font-style: normal;
    font-weight: 700;
}

/* ---------- alt bilgi (açık zemin) ---------- */
.footer {
    padding: 64px 0 32px;
    border-block-start: 1px solid var(--line);
    background: var(--bg-soft);
    color: var(--ink-2);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
}

.footer-brand p {
    max-width: 300px;
    margin-top: 16px;
    color: var(--muted);
}

.footer-col h4 {
    margin-bottom: 14px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink);
}

.footer-col h4[translate="no"] {
    text-transform: none;
    letter-spacing: 0.04em;
    font-size: 0.9rem;
}

.footer-col a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
    font-size: 0.97rem;
    color: var(--ink-2);
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--brand);
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 24px;
    margin-top: 48px;
    padding-top: 26px;
    border-block-start: 1px solid var(--line);
    font-size: 0.88rem;
    color: var(--muted);
}

/* ---------- 404 ---------- */
.notfound {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 140px 0 96px;
    text-align: center;
}

.notfound-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(50% 45% at 50% 20%, rgba(52, 199, 154, 0.2), transparent 70%),
        linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
}

.notfound-code {
    font-size: clamp(5rem, 16vw, 9rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.05em;
    background: linear-gradient(120deg, var(--brand) 20%, var(--brand-400) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.notfound h1 {
    margin-top: 12px;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.notfound p:not(.notfound-code) {
    max-width: 440px;
    margin: 12px auto 32px;
    color: var(--ink-2);
}

/* ---------- görünüm animasyonu ---------- */
.js .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.js .reveal.in {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .js .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .dot {
        animation: none;
    }
}

/* ---------- duyarlı ---------- */
@media (max-width: 1080px) {
    .screens-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 56px 32px;
    }

    .screen-card .phone {
        --pw: 250px;
    }
}

@media (max-width: 980px) {
    .hamburger {
        display: inline-flex;
    }

    .nav-inner {
        justify-content: space-between;
    }

    .nav-menu {
        position: fixed;
        inset: 68px 0 auto 0;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        margin: 0;
        padding: 14px 24px 22px;
        background: rgba(255, 255, 255, 0.97);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        box-shadow: 0 20px 40px -20px rgba(7, 31, 25, 0.3);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .nav-link {
        padding: 13px 14px;
        font-size: 1.02rem;
    }

    .nav-tools {
        margin-inline-start: auto;
    }

    .section {
        padding: 84px 0;
    }

    .hero {
        padding: 108px 0 40px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .hero-copy {
        max-width: none;
        margin-inline: auto;
        text-align: center;
    }

    .hero-lead {
        margin-inline: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-stage {
        --front-pw: clamp(180px, 58vw, 260px);
        --back-pw: calc(var(--front-pw) * 0.81);
        width: min(100%, 460px);
        margin-inline: auto;
    }

    .hero-stage .phone-front {
        inset-inline-end: 4%;
    }

    .hero-stage .phone-back {
        inset-inline-end: calc(4% + var(--front-pw) * 0.77);
        inset-block-start: calc(var(--front-pw) * 0.3);
    }

    .values-grid,
    .plans-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px 28px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 760px) {
    .steps {
        grid-template-columns: 1fr;
        gap: 64px;
        margin-top: 56px;
    }

    .step .phone {
        --pw: clamp(200px, 62vw, 240px);
    }

    /* ekranlar: yatay kaydırmalı şerit (sayfa değil yalnız şerit kayar); sonraki kart kenardan görünür */
    .screens-grid {
        grid-template-columns: none;
        grid-auto-flow: column;
        grid-auto-columns: min(78%, 280px);
        gap: 20px;
        margin-inline: -24px;
        margin-block-end: -40px;
        padding: 8px 24px 56px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        scroll-padding-inline: 24px;
        scrollbar-width: none;
    }

    .screens-grid::-webkit-scrollbar {
        display: none;
    }

    .screen-card {
        scroll-snap-align: center;
    }

    .screen-card .phone {
        --pw: clamp(180px, 52vw, 232px);
    }
}

@media (max-width: 560px) {
    body {
        font-size: 16px;
    }

    .container {
        padding: 0 20px;
    }

    .screens-grid {
        margin-inline: -20px;
        padding-inline: 20px;
        scroll-padding-inline: 20px;
    }

    .faq-item summary {
        padding: 18px 20px;
    }

    .faq-a {
        padding: 0 20px 20px;
    }

    .product {
        padding: 48px 22px;
    }
}